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    <script>
        // // 打印1-3
        // for (var i = 1; i<=5; i++) {
        //     if (i < 4) {
        //         console.log(i);
        //     } else {
        //         break;
        //     }
        // }
        // 游标打断外层循环,当输出8*8=64时中断循环
        break_flag:for (var i = 1; i <=  9; i++) {
            for (var j = 1; j <= i; j++) {
                console.log(j + "x" + i + "=" + i*j);
                if (i==8 && j == 8) {
                    break break_flag;
                }
            }
        }
        
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